Method of welding,申请号US19280253948-传众专利搜索

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发明名称	Method of welding
摘要
申请公布号	US1765368(A)	申请公布日期	1930.06.24
申请号	US19280253948	申请日期	1928.02.13
申请人	THE UNION METAL MANUFACTURING COMPANY	发明人	FRAHM CARL A.;RIEMENSCHNEIDER EDMUND W.
分类号	B21B1/08;B21B1/22;B21D19/00;B23K33/00	主分类号	B21B1/08
代理机构		代理人
主权项
地址

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